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hamncheez pinkbikeaudience's article
Jul 14, 2018 at 22:25
23 hours
PSA: Don't Stop on the Trail
Everyone loves to complain, no one will admit they've been that kid before
hamncheez pinkbikeaudience's article
Jul 12, 2018 at 9:55
Jul 12, 2018
Timed Training Results: Vallnord DH World Cup 2018
Once again, Gwin chooses to take it easy on TT, instead waiting to peak on race day!! .....sobs quietly.......
hamncheez paulaston's article
Jul 12, 2018 at 9:53
Jul 12, 2018
More Randoms - Eurobike 2018
Im guessing this solution is harder to implement on a bike with longer chainstays, like a 26, 650b, or 29er
hamncheez paulaston's article
Jul 12, 2018 at 9:50
Jul 12, 2018
More Randoms - Eurobike 2018
3 reasons- first it has a high main pivot. Second is related to the first- they theorize that most bikes have too much chain growth, what some call anti-squat. It helps you pedal better, but can hurt downhill suspension performance since it drags on your rear wheel and rear suspension. Remember Gwins chainless win? He commented that the suspension felt really good, and after that GMBN did some tests where they found that on non-pedally DH runs they could post faster times without a chain. Having lower chain growth by using an idler, in theory, can help emulate that feeling. Third, and finally, the arguement for putting a high main pivot on the bike is that 29ers are taller wheels, so to keep the bottom bracket height closer to the smaller wheel sizes you have to have more bottom bracket drop, to the point where the BB is lower than the 29er axles. This means you get much less rearward wheel travel for a given amount of chain growth, and in many cases you dont get any rearward movement at all- like having a super steep head tube angle on the front of your bike. The higher pivot, which requires an idler, allows 29ers to have more rearward travel.
hamncheez RichardCunningham's article
Jul 5, 2018 at 16:01
Jul 5, 2018
Review: Race Face’s New Cinch Oval Ring
@xeren: If the ovality is not symmetrical, or perfectly concentric, then you will get a variation in the percentage of the elipse or circle that is engaged with the chain. If the chain comes off the oval ring with the top and bottom perfectly in parallel, then at any given rotational position 50% of the perimeter of the elipse (or 50% of the teeth) is engaged with the chain. That percentage will not vary with a perfectly symmetrical, perfectly concentric oval. In the real word, with a derailleur changing the angle of the top and bottom chainline, there will be some bob, but its very minimal. If it was an issue we wouldn't see pro road bikers riding with oval rings. They are so obsessed with efficiency that some even have a small oil reservoir that keeps their chain lubed during races, while they are riding.
hamncheez RichardCunningham's article
Jul 5, 2018 at 15:41
Jul 5, 2018
Review: Race Face’s New Cinch Oval Ring
@xeren: I'm not seeing any movement in that youtube video, and barely any movement in the video in this article. The whole bike wobbles slightly up and down as the crank is turned by someones hand, but the derailleur is almost stationary.
hamncheez RichardCunningham's article
Jul 5, 2018 at 14:18
Jul 5, 2018
Review: Race Face’s New Cinch Oval Ring
@xeren: Yes, but when its on both of the low points, its on one of the high points as well. In theory, if you have half of a perfectly balanced oval ring engaged with a chain, there would be 0 chain growth. Look at the video above- theres next to no bob whatsoever. Here is another example showing no observable bob: https://www.youtube.com/watch?v=qRPK5nevhX4
hamncheez RichardCunningham's article
Jul 5, 2018 at 11:07
Jul 5, 2018
Review: Race Face’s New Cinch Oval Ring
It helps my knee pain and I feel like I can spin faster comfortably
hamncheez RichardCunningham's article
Jul 5, 2018 at 11:05
Jul 5, 2018
Review: Race Face’s New Cinch Oval Ring
A well designed oval ring should have nearly no pulse ( like my wolf tooth). Maybe try another brand?
hamncheez paulaston's article
Jul 4, 2018 at 8:27
Jul 4, 2018
The Resurgence of High Pivot Suspension Design
There were Jedi all over the place in Utah and Idaho back in the day
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